A possible frequency planning method and related model calculations for the sharing of VHF band II (
A possible frequency planning method and related model calculations for the sharing of VHF band II (
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VHF频段II共享的一种可能的频率规划方法及相关模型计算（
DOI：
10.1109/11.86962
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发表时间：
1991
影响因子：
4.5
通讯作者：
Sueddeutscher Rundfunk
中科院分区：
文献类型：
--
作者：
T. Prosch;Sueddeutscher Rundfunk
提出了一种基于阶乘菱形数导出的规则网格的频率规划方法。理论上表明，与现有的广播网络相比，频谱效率可以提高约30%。这意味着对发射机站点处的频率复用的约束不那么严格。给出了一个试验区的频率规划和网络覆盖的模型计算。结果表明，VHF频谱的容量足以引入DAB，但仍然广播相同数量的现有FM节目。>
A frequency planning method is proposed that is based on regular lattices derived from factorial rhombic numbers. It is shown theoretically that the spectrum efficiency can be improved by about 30% in comparison to existing broadcast networks. This implies less stringent constraints for frequency multiplexing at the transmitter sites. A frequency plan and model calculations of the network coverage are given for a test area. It is shown that the capacity of the VHF spectrum is sufficient to introduce DAB yet still broadcast the same amount of existing FM programs. >